CN105090891B - Light guide assemblies for display illumination - Google Patents
Light guide assemblies for display illumination Download PDFInfo
- Publication number
- CN105090891B CN105090891B CN201510222633.1A CN201510222633A CN105090891B CN 105090891 B CN105090891 B CN 105090891B CN 201510222633 A CN201510222633 A CN 201510222633A CN 105090891 B CN105090891 B CN 105090891B
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- China
- Prior art keywords
- light
- diffusing globe
- protrusion
- light guide
- prism
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/28—Structurally-combined illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0018—Redirecting means on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
Abstract
A kind of light guide assemblies for instrument display include light shell, light source and light guide.Light guide by the light directing from light source pass through light shell in opening and including at least the first branch and the second branch.The overthe openings in light shell are arranged in diffusing globe.Diffusing globe include the inside towards light shell bottom surface and and bottom surface oppositely facing top surface.In a part for the top surface that diffusing globe is arranged in light smooth feature, so that light smooth feature reduces the brightness of the part of top surface, to keep the brightness of at least constant on diffusing globe.
Description
Technical field
The present disclosure generally relates to a kind of light shells for instrument board, and relate more particularly to a kind of include concentrating light source
Light shell.
Background technique
The conventional method for illuminating instrument board includes that light shell (being alternatively referred to as light box) and diffusing globe are located in instrument board
Below, to illuminate instrument board.Light shell includes light guide, the light source of the subsequent such as LED of the light guide comfortable light shell in future
Light re-directs on entire light shell.As light is advanced along light guide, light escapes light guide at each point, to distribute light over
On entire light shell.Diffusing globe is positioned to the opening towards front of covering light shell and further diffuses escape from light guide
Light.
Due to the property of light guide, typical light shell diffusing globe includes highlights and dark portion, wherein the most highlights of diffusing globe is most
Close to the most dark portion of light source and diffusing globe farthest away from light source.In order to compensate for closest to the increased brightness at light source, dark face
Color is being screen printed on diffusing globe to reduce the light allowed across diffusing globe closest at light source.Printing allows across diffusing globe
Light more evenly distribution, but using the total amount value of reduced light as cost.
Alternative for removing or reducing clear zone is always to be distributed on top (facing external) surface of diffusing globe
Lenticule.Lenticule provides similar effect and is more uniformly distributed light.As silk-screen printing, lenticule is also reduced
Across the magnitude of the light of diffusing globe, so as to cause overall darker illumination.
Summary of the invention
The invention discloses a kind of light guide assemblies for instrument display, which includes: light shell；Light source；
Light directing from light source is passed through the opening in light shell by light guide, wherein light guide includes the first branch and the second branch；
The top of the opening in light shell is arranged in diffusing globe, wherein diffusing globe includes the bottom table of the inside towards the smooth shell
Face and with the bottom surface oppositely facing top surface；And light light (dim) feature, the one of the top surface of diffusing globe is set
On part, so that light smooth feature reduces the brightness of the part of top surface, to keep at least substantially permanent on the diffusing globe
Fixed brightness.
The invention also discloses a kind of methods for reducing non-uniform light distribution by diffusing globe, and this method includes making
Light passes through the protrusion for the multiple light transmissions (clear) being arranged on the surface of light box diffusing globe, to carry out to the light for passing through protrusion
Light light, wherein protrusion is arranged in the speck of diffusing globe.
The invention also discloses a kind of diffusing globe for light guide assemblies, the diffusing globe include: the surface faced out and with
The opposite inward-facing surface in the surface faced out；The interior section on the surface faced out comprising it is described towards
The center on outer surface；The exterior section on the inward-facing surface, close to the edge on the surface faced out；It is multiple
The protrusion of light is arranged on the interior section on the surface faced out, wherein the protrusion of the light transmission can operate
For re-directing the light for passing through diffusing globe at interior section, to provide light light effect.
These and other features of the invention can be best understood by from the following specification and attached drawing, be attached drawing below
Brief description.
Detailed description of the invention
Fig. 1, which is schematically shown, utilizes the light casing assembly for concentrating light source.
Fig. 2 schematically shows the light casing assembly including the light smooth feature of diffusing globe.
Fig. 3 schematically shows the alternative light casing assembly including the light smooth feature of diffusing globe.
Fig. 4 schematically shows the exemplary light casing assembly including T shape light guide.
Fig. 5 A is shown schematically in the first exemplary arrangement of the light smooth feature on diffusing globe.
Fig. 5 B is shown schematically in the second exemplary arrangement of the light smooth feature on diffusing globe.
Specific embodiment
Fig. 1 schematically shows the cross-sectional view of the light casing assembly 10 including opaque light box 20.The setting of light guide 40 exists
In light box 20.Light guide 40 includes the reflecting surface 42 along the length reflected light of light guide 40.Light guide 40 also includes optical receiving surface
44.Optical receiving surface 44 is arranged adjacent to and towards the light source of such as LED 30.When light source 30 emits light, light passes through light-receiving
Surface 44 enters light guide 40 and reflects along light guide 40.
As light is reflected along light guide 40, light is escaped from light guide 40.Opaque 20 reflected light of light box and prevent light from removing
By escaping light casing assembly 10 except the opening that is covered by diffusing globe 50.In addition, being approximately perpendicular to unrestrained for observer
The light that emitter 50 is advanced seems brighter than being roughly parallel to the light of the traveling of diffusing globe 50.It is curved as a result, in light as light guide 40
The center evolution light guide 40 and the light across the central area of diffusing globe 50 of casing assembly 10 seem brighter for observer.
Similarly, it is approximately parallel to diffusing globe 50 in the light of the end of light guide 40 evolution light guide 40 to advance, and for observer
Seem darker.
In order to handle these brightness changes in the different zones of light diffuser 50, current system is in diffusing globe 50
Semitransparent layer 60 is printed on one surface.Semitransparent layer 60 prevents the light of the certain percentage of contact semitransparent layer 60 from passing through diffusion
Device 50, to reduce the perceived brightness of light.Light is not contributeed to across edge and in each area using screen printing technique
The brightness for passing through the light of diffusing globe 50 reduces set amount.
With continued reference to Fig. 1, and the element that wherein similar digital indication is similar, Fig. 2 are schematically shown illustratively
Light casing assembly 100.As the example of Fig. 1, light casing assembly 100 includes light box 120 and the light guide being arranged in light box 120
140.Light guide 140 includes for the reflecting surface 142 along 140 reflected light of light guide and for allowing light to enter the light of light guide 140
Receiving surface 144.Optical receiving surface 144 is arranged adjacent to and towards light source 130.As the example of Fig. 1, light passes through light-receiving
Surface 144 enters light guide 140 and is oriented to along light guide 140.
Opening that diffusing globe 150 is located in light box 120 and the light for being diffused off light box 120.Diffusing globe 150 includes
Three parts, central part 152, middle section 151 and exterior section 154.Although being described herein as explanatory purposes
Discontinuous section, it will be appreciated by persons skilled in the art that diffuser section 151,152,154 can adjacent part 151,152,
It include transition between 154 rather than discontinuous boundary.
It is substantially perpendicular to diffusing globe 150 in the light that central part 152 leaves light box 120, is caused in the surplus of diffusing globe 150
Remaining part split-phase is for the speck in central part 152.Because light is oriented to by reflecting surface 142 along light guide 140, the traveling of light
Direction is modified.When light 172 is when light guide 140 is left in the end of light guide 140, light 172 is being arranged essentially parallel to diffusing globe 150
Side travels upwardly.Lack other feature (for example, light enhances prism 170), this causes the exterior section 154 of diffusing globe to compare diffusing globe
150 remainder is dark.
Diffusing globe in order to reduce the perceived brightness of central part 152, in the centrally disposed region of protrusion of multiple light transmissions
On 150 surface.In one example, each of protrusion 160 is pyramid prism.Protrusion 150 is re-directed across convex
A part of 160 light is played, so that the light re-directed is no longer substantially perpendicular to the traveling of diffusing globe 150.As it is this again
Guiding as a result, light seems darker for observer.
Although being shown as one group of identical equally distributed pyramid prism, the technology of this field in the figure 2 example
Personnel will be appreciated that, protrusion 160 can be spaced apart, create the feature changed or be both of these case so as at entire center
The light light effect of gradient is realized on part 152 rather than uniform light light effect.The example of such arrangement is shown in Fig. 5 A and 5B
Out and it is described below.
Diffusing globe 150 is left at exterior section 154 in order to facilitate light, the interior table of diffusing globe 150 is arranged in prism 170
On face.When the light 172 for being arranged essentially parallel to the traveling of diffusing globe 150 leaves light guide 140, light 172 enters prism 170.Prism 170
Then the light 172 that diffusing globe 150 is advanced will be arranged essentially parallel to and re-direct into light 174.The light 174 re-directed passes through diffusion
Device 150 and leave light box 120.Because light 174 is substantially perpendicular to diffusing globe, light 174 seems brighter for observer.
In this way, enhancing the brightness for leaving the light of light guide 140 at exterior section 154 by prism 170.
Although being shown as the single prism at each of exterior section place in the figure 2 example, but it is to be understood that
Multiple prisms 170 can be used for same effect, wherein prism 170 is arranged and is spaced apart to enhance for optimal brightness.It is based on
Those skilled in the art of the demand and constraint that given light box 120 is applied, the benefit with the disclosure will determine rib
Optimal placement of the mirror 170 in exterior section 154.
With continued reference to Fig. 1 and 2, and the element that wherein similar digital indication is similar, Fig. 3 schematically shows exemplary
Light casing assembly 200, light casing assembly 200 include the outer edge of light guide 240 additional brightness enhance prism 280.
As the example of Fig. 2, light casing assembly 200 includes light box 220 and the light guide 240 being arranged in light box 220.Light guide 240 wraps
It includes for the reflecting surface 242 and optical receiving surface 244 along 240 reflected light of light guide.Optical receiving surface 244 is arranged adjacent to simultaneously
And towards light source 230.Light enters light guide 240 by optical receiving surface 244 and is oriented to along light guide 240.
Opening that diffusing globe 250 is located in light box 220 and the light for being diffused off light box 220.Diffusing globe 250 includes
Three parts, central part 252, middle section 251 and exterior section 254.Although being described herein as explanatory purposes
Discontinuous section, with disclosure benefit it will be appreciated by persons skilled in the art that diffuser section can be in adjacent part
It 251, include transition rather than discontinuous boundary between 252,254.
Diffusing globe 250 includes the protrusion 260 of light transmission, in raised 260 parts 252 centrally disposed in the same manner and is mentioned
For the identical effect of protrusion 160 of light transmission shown in the example with Fig. 2.
Prism 270 is arranged on each of exterior section 254 of diffusing globe, with the prism in the example with Fig. 2
170 similar modes are arranged.Further increasing the brightness reinforcing effect in the example of Fig. 3 is that the setting of additional prism 280 exists
On the surface towards front at every end of light guide 240.As previously mentioned, light 272 is on the direction for being arranged essentially parallel to diffusing globe 250
Leave light guide 240.Light 272 encounters the prism 280 being arranged on light guide 240 and re-directs into light 274, light by prism 280
274 directly advance towards the prism 270 on the inner surface for the diffusing globe 250 being arranged in exterior section 254.Prism 270 is by light 274
Re-direct into the light for being arranged essentially parallel to the traveling of diffusing globe 250.
Relative to the example of Fig. 2, presence of the additional prism 280 on light guide 240 is increased into setting in diffusing globe
The magnitude of the light 274 of prism 280 on 250 inner surface.The magnitude of the increased light into prism 280 is increased by prism
The amount of 270 light 276 re-directed has brighter appearance so as to cause exterior section 254 for observer.With prism
As 270, prism 280 can be multiple prisms rather than single diagram prism 280.For given application, have
Those skilled in the art of the benefit of the disclosure can determine the suitable quantity and arrangement of prism 280.
Alternative light guide casing assembly 300 is schematically shown with continued reference to Fig. 1-3, Fig. 4.Alternative light guide casing assembly 300
Including light box 320 and the light guide 340 being arranged in light box 320.The light guide 340 of Fig. 4 be include the approximation for being connected to lead arm 348
The T-type light guide 340 of the receiving arm 346 at center.Light source 330 is to 344 irradiation light of optical receiving surface of receiving arm 346, to allow
Light enters light guide 340.Prism 342 is arranged at the engaging portion between receiving arm 346 and lead arm 348.When from light source 330
When light 332 enters the light-receiving arm of light guide 340, light encounters prism 342.Prism 342 then by light 334 in either direction along
Light guide walls 348 re-direct, and the direction depends on the light 332 from light source 330 and impinges upon on which side of prism 342.
Diffusing globe 360 includes the protrusion of the light transmission in central part 352 on the outer surface and in exterior section 354
Prism 370 on surface.Protrusion 360 and prism 370,380 by with it is identical above by reference to described in Fig. 1-3 in a manner of operate.
With continued reference to Fig. 1-4, and the element that wherein similar digital indication is similar, Fig. 5 A are shown with protrusion 452
The exemplary center part of the diffusing globe 450 of first arrangement.Each of protrusion 452 in the example shown leaves diffusing globe
450 even heights 490.In addition, each of protrusion 452 has uniform base portion size.Therefore, each in protrusion 452
A is identical structure.In order to provide the light light effect of gradient to the light for passing through diffusing globe 450, the distribution of protrusion 452 is towards diffusing globe
450 center comparatively dense and less dense in the edge of diffusing globe 450.In other words, each raised 452 and adjacent convex
Rise the distance between 452 454 at the center of diffusing globe 450 be it is the smallest, and each raised 452 and adjacent protrusion 452 it
Between midway of the distance 456 between the center of diffusing globe 450 and the edge of diffusing globe 450 be medium, and each protrusion
The distance between 452 and adjacent protrusion 452 458 are longest in the edge of diffusing globe 450.
Reduced and making the density of protrusion 452 with protrusion 452 close to the edge of diffusing globe 450, passes through diffusing globe 450
Light approached by the amount of light light diffusing globe 450 edge gradient reduce.Therefore, the brightest area (center) of diffusing globe 450
It is most by light light.
Fig. 5 B, which is shown, to be realized by the alternative approach of the similar light smooth gradient effect of the example implementation of Fig. 5 A.With the example of Fig. 5 A
It compares, each of protrusion 452 is apart from each other raised 452 same distances and protrusion 452 has a varying height
Size and uniform base widths.In the example of Fig. 5 B, the protrusion 452 in bosom has highest height 492, intermediate projections
With intermediate altitude 494, and outermost protrusion has most short height 496.Center with protrusion from diffusing globe 450 is more
Far, additional height 492,494,496 can be reduced with the height of protrusion 452 and be spread.
The effect of the height dimension of change and uniform base dimension is the angle on the side for change protrusion 452, wherein
Height is bigger, and angle is more precipitous.More light is re-directed the vertical line far from diffusing globe 450 by more precipitous angle.Therefore,
Height is bigger, and raised light light effect is bigger.By with protrusion 452 further from the center of diffusing globe 450 and reduce height,
Light light effect reduces, to realize light smooth gradient.In alternative example, protrusion 452 can have change in elevation and base portion size.?
In alternative example, the angle of raised wall is controlled to realize above-described gradient effect.In other examples, Fig. 5 A and
The feature of Fig. 5 B may then bond together to further increase light light effect.
Although each of above example is described using pyramid prism as the protrusion of the light transmission from diffusing globe,
It is understood that the prism of alternative shape also is likely used for similar effect.
It will be further understood that any of concept described above can be used alone or in other concepts described above
Any or all combined use.Although the embodiment of the present invention has been disclosed, those skilled in the art will recognize
Know, certain modifications will be fallen within the scope of the present invention.For this reason, it should study following following claims to determine this hair
Bright true scope and content.
Claims (16)
1. a kind of light guide assemblies for instrument display, comprising:
Light shell；
Light source；
Light guide, the opening that will be passed through from the light directing of the light source in the smooth shell, wherein the light guide includes having
For receiving the light-receiving arm of the center surface of the light from the light source and from least two light of the center surface branch
Guide arm, wherein each of described light guide arm include can operate for will the light from the light source along the light guide
The reflecting surface of arm guiding；
The overthe openings in the smooth shell are arranged in diffusing globe, wherein the diffusing globe includes towards the smooth shell
Internal bottom surface and with the bottom surface oppositely facing top surface；And
Light smooth feature, is arranged in a part of the top surface of the diffusing globe, so that the light smooth feature reduces institute
The brightness of the part of top surface is stated, the brightness for crossing at least constant of the diffusing globe is thus kept；With
Multiple smooth Enhanced features in the outer edge part of the bottom surface of the diffusing globe are set, so that coming from the light
The brightness of the light for the outer edge part across the diffusing globe led increases.
2. light guide assemblies according to claim 1, wherein the smooth Enhanced feature is prism wedge, the prism wedge
It can operate for reflected light, be guided to be approximately perpendicular to described overflow so that being roughly parallel to the light that the diffusing globe is advanced
Emitter, to increase the intensity of the light across the diffusing globe.
3. light guide assemblies according to claim 2 further include the multiple light guide prisms being arranged on the light guide, wherein
Each of the multiple light guide prism is matched with corresponding prism wedge, so that the light directing from the light guide is described in
Prism wedge.
4. light guide assemblies according to claim 1, wherein the light-receiving arm is single-piece.
5. light guide assemblies according to claim 1, wherein the light guide includes:
T shape profile, the light-receiving arm are connected to the light guide arm in the approximate center of light guide arm；And
Prism is arranged at the engaging portion between the light-receiving arm and the light guide arm, wherein the prism can operate
For being transmitted in received light at the light-receiving arm along the light guide arm.
6. light guide assemblies according to claim 1, wherein the light smooth feature is the protrusion of multiple light transmissions, wherein described
Each of protrusion, which can be operated, is upward through the light of the diffusing globe in the side perpendicular to the top surface for reducing
Amount.
7. light guide assemblies according to claim 6, wherein each of protrusion of the light transmission is pyramid prism.
8. light guide assemblies according to claim 6, wherein the protrusion of the multiple light transmission is uniform shapes and uniform big
Small, and wherein, the distribution of the multiple protrusion is oriented with the multiple protrusion further from the diffusing globe
The heart and reduced in density, and wherein, the light light effect of the perception of the protrusion depends on the described close of the protrusion distribution
Degree.
9. light guide assemblies according to claim 6, wherein the modified size of protrusion of the multiple light transmission, so that
The amount of the light re-directed by each protrusion reduces at a distance from the center of the diffusing globe relative to the protrusion, thus
Realize light smooth gradient.
10. a kind of method for reducing non-uniform light distribution by diffusing globe, comprising:
The protrusion for the multiple light transmissions being arranged on light box diffuser surface is passed light through, thus to the light for passing through the protrusion
Carry out light light, wherein the protrusion is arranged on the speck of the diffusing globe；With
So that the light for escaping light guide is passed through at least one light being arranged on the surface towards inside of the diffusing globe enhances prism,
To increase the brightness for the light for passing through the diffusing globe at light enhancing prism, wherein the light enhancing prism setting exists
On the outer edge of the diffusing globe.
11. according to the method described in claim 10, further include make to escape the light of the light guide a part pass through light guide
Prism, so that passing through the light directing of the light guide prism enhances prism at least one described light.
12. according to the method described in claim 10, wherein, at least one light enhancing prism is to be arranged in the diffusing globe
Exterior section in multiple prisms.
13. according to the method described in claim 10, wherein, the protrusion of the light transmission is dimensioned and arranged to so that by described
The light light effect that the protrusion of light transmission generates is the light light effect of gradient.
14. a kind of diffusing globe for light guide assemblies, comprising:
The surface and the inward-facing surface opposite with the surface faced out faced out；
The interior section on the surface faced out comprising the center on the surface faced out；
The exterior section on the inward-facing surface, close to the edge on the surface faced out；
The protrusion of multiple light transmissions is arranged on the interior section on the surface faced out, wherein the light transmission it is convex
Rising can operate for re-directing the light for passing through the diffusing globe at the interior section, to provide light light effect；
With
Multiple prisms on the exterior section on the inward-facing surface are set, wherein every in the multiple prism
One can operate for re-directing the light for passing through the diffusing globe at the exterior section, so that the light is substantially
Perpendicular to the diffusing globe, to enhance the brightness of the light.
15. diffusing globe according to claim 14, wherein the protrusion of the multiple light transmission include have uniform size and
The protrusion of density gradient is placed, to provide biggish light light effect at the center of the interior section and in the inside
Partial edge provides lesser light light effect.
16. diffusing globe according to claim 14, wherein the protrusion of the multiple light transmission is including with Variable rate and
The even protrusion for placing density, and wherein, be arranged in the light transmission of the immediate vicinity of the interior section protrusion provide compared with
The protrusion of big light light effect and the adjacent edges in the light light part provides less light light effect.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/269680 | 2014-05-05 | ||
| US14/269,680 US9632230B2 (en) | 2014-05-05 | 2014-05-05 | Light guide assembly for display illumination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090891A CN105090891A (en) | 2015-11-25 |
| CN105090891B true CN105090891B (en) | 2019-08-20 |
Family
ID=54326174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510222633.1A Active CN105090891B (en) | 2014-05-05 | 2015-05-05 | Light guide assemblies for display illumination |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9632230B2 (en) |
| CN (1) | CN105090891B (en) |
| DE (1) | DE102015204679A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI570483B (en) * | 2014-07-21 | 2017-02-11 | 友達光電股份有限公司 | Display device |
| US10318075B2 (en) * | 2014-12-10 | 2019-06-11 | Sega Sammy Creation Inc. | Casing and light emission device for game device |
| KR102620075B1 (en) * | 2019-04-29 | 2024-01-03 | 삼성전자주식회사 | Display panel and display device for controlling color temperature |
| DE102019125640A1 (en) * | 2019-09-24 | 2021-03-25 | Zumtobel Lighting Gmbh | Optical element |
| TWI813920B (en) * | 2019-12-06 | 2023-09-01 | 美商伊路米納有限公司 | Electric apparatus and closure thereof |
| JP2024030596A (en) * | 2022-08-24 | 2024-03-07 | スタンレー電気株式会社 | Vehicle lights |
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| JP2012129146A (en) * | 2010-12-17 | 2012-07-05 | Hayashi Engineering Inc | Lighting device |
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| KR100993383B1 (en) * | 2007-03-15 | 2010-11-09 | 제일모직주식회사 | Diffuser prism sheet comprising light diffuser in the valley of prism and LCD back light unit thereby |
| EP2245363A1 (en) * | 2008-02-22 | 2010-11-03 | OSRAM Opto Semiconductors GmbH | Optical arrangement and production method |
| US9075172B2 (en) * | 2010-09-20 | 2015-07-07 | Luxingtek, Ltd. | Light converting optical structure and lighting device utilizing the same |
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- 2014-05-05 US US14/269,680 patent/US9632230B2/en active Active
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- 2015-03-16 DE DE102015204679.6A patent/DE102015204679A1/en not_active Ceased
- 2015-05-05 CN CN201510222633.1A patent/CN105090891B/en active Active
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|---|---|---|---|---|
| US6193383B1 (en) * | 1998-03-27 | 2001-02-27 | Citizen Electronics Co., Ltd. | Linear light source unit |
| CN101449187A (en) * | 2006-05-31 | 2009-06-03 | 3M创新有限公司 | Flexible light guide |
| JP2012129146A (en) * | 2010-12-17 | 2012-07-05 | Hayashi Engineering Inc | Lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015204679A1 (en) | 2015-11-05 |
| US20150316708A1 (en) | 2015-11-05 |
| US9632230B2 (en) | 2017-04-25 |
| CN105090891A (en) | 2015-11-25 |
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